Dual-Fuelling of a Direct-Injection Automotive Diesel Engine by Diesel-Gas Method

  • سال انتشار: 1371
  • محل انتشار: ماهنامه بین المللی مهندسی، دوره: 5، شماره: 3
  • کد COI اختصاصی: JR_IJE-5-3_008
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 194
دانلود فایل این مقاله

نویسندگان

A. Mohammadi Kosha

, University of Tabriz

V. Pirouzpanah

Mechanical Engineering, University of Tabriz

چکیده

Use of liquefied petroleum gas (LPG) in compression-ignition (C-I) engines has always been considered important in the diesel engineering field. This is due to its easy accessibility and good combustion characteristics. In this paper the application of LPG fuel along with diesel oil in a direct- injection automotive diesel engine is experimentally investigated. In order to convert the pure diesel engine into a diesel-gas one, a carbureted LPG fuel system has been designed and fitted into the engine. Then by means of a system of rods, the LPG system is linked to the diesel fuel injection system. The dual- fuel system is adjusted so that, at full load conditions, the quantity of diesel oil is reduced to ۷۰%, and ۳۰% of its equivalent energy is substituted by LPG fuel. Performance tests conducted under various loads and speeds on both diesel and diesel-gas engines, show that with equal power the diesel-gas engine has the potential to improve overall engine performance. For example, within useful speed range, its fuel economy increases by ۲-۵% and the amount of smoke and mean exhaust gas temperature are reduced by ۲۵-۴۸% and ۳.۵ -۷.۲% respectively. Also various proportions of LPG and diesel oil are investigated. It is found that the ratio of ۳۰% LPG/۷۰% diesel oil is the most suitable one. The experimental results verify the predicted results, obtained from a diesel-gas engine cycle model.

کلیدواژه ها

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.